Upper Macungie and the rest of the Lehigh Valley are in the throes of another heat wave and today could bring the highest temperature of the week - 96 degrees as predicted by the National Weather Service.

Watch out for a heat index (temperature plus humidity) of 100 Tuesday afternoon.

Residents are urged to take precautions against heat stroke and check on elderly/infirm neighbors.

The heat wave in the first week of July claimed three people including an elderly couple who lived near Fogelsville in Weisenberg Township.

Temperatures should fall back to the mid-80s for Thursday through Sunday, with nighttime lows in the 60s.